The stones here are very hard, even Qin Ming himself digs very slowly with the flames of the spirit of heaven and earth.

Even with the best tools, Dragon Realm warriors would not be able to dig out any black stones here.

"At least a true dragon-level fighter is capable of digging here." Qin Ming deduced.

He thought of the Kuai family.

It is very likely that the Kuai family has a mine vein, otherwise they should be reluctant to give away the eighth-grade black stone, even if it is only one.

Although these big powers are very rich, they are notoriously stingy.

Since the Kuai family gave him the eighth-grade black stone, it is likely that there is a stable way to get the eighth-grade black stone. Qin Ming guessed it was a vein.

But even if the Kuai family has a mine, it is absolutely impossible to be as rich as the mine in front of them. Even if it can produce eighth-grade black stones, eighth-grade black stones must be hard to come by.

Although he really wanted to dig out this vein, Qin Ming resolutely left.

He has wasted a long time here, during this time his martial arts have not improved at all.

After Qin Ming got out of the cave, he continued to swim east.

The sea is boundless, and there are no obvious landmarks. It is almost impossible to leave here and want to come back.

But there are more precious things in this world, and we cannot stay here forever just because of the wealth here.

Qin Ming surfaced tentatively, only to find that the clouds were densely covered with lightning and thunder.

Although he had come up more than once, every time he saw the black clouds in the sky, he was disappointed.

"What is this place, why have I never heard of it?" Qin Ming was puzzled.

He has been in this sea for a long time, and with his current speed, one can imagine how big the sea is.

But such a large area of ​​the sea is covered with such black clouds, and it seems that it will never dissipate, which is really incredible.

He should have heard of such an unbelievable place, but in fact, no matter whether it is in books or other warriors, he has never heard of it.

Qin Ming had no choice but to keep swimming.

Another month passed by in a hurry, Qin Ming was still in the sea, he used his spiritual sense to explore the surroundings, and swam forward cautiously.

When he first came here, he was interested in looking at the bottom of the sea, but now he doesn't want to pay too much attention to the black rocks on the bottom of the sea, and he is already a little tired of seeing the scenery here, so he just wants to leave early.

"Feng Bai will probably stay in the cave, he will definitely be very worried, so we should go and meet him sooner!" Qin Ming thought to himself.

There were a lot of ferocious beasts in that forest, and they were very powerful. If Feng Bai came out alone, he might encounter fatal danger.

Qin Ming remembered that he gave Feng Bai a space ring, which contained a lot of food, as well as a lot of pills and black stones.

Even if you retreat in the cave for a hundred years, you don't have to worry about not having enough supplies.

In normal times, Feng Bai looked carefree, but in fact he was very careful and cautious, so he would probably wait for him while cultivating in the cave.

Just thinking about Feng Bai, Qin Ming suddenly felt the water flow abnormally.

But in his consciousness, he didn't notice anything strange.

Qin Ming turned around suddenly, startled.

"What a big turtle!" Qin Ming hastily avoided it.

In front of him, there was a tortoise like a hill, with a thick khaki shell covered with patterns on its back, and it was swimming forward at a leisurely pace.

This tortoise is very ugly, although its body is big, it does not exude any strong power. Many fish with very low strength swim slowly around it.